diff options
| -rw-r--r-- | loginutils/Makefile.in | 3 | ||||
| -rw-r--r-- | loginutils/delgroup.c | 60 | ||||
| -rw-r--r-- | loginutils/delline.c | 113 | ||||
| -rw-r--r-- | loginutils/deluser.c | 127 |
4 files changed, 183 insertions, 120 deletions
diff --git a/loginutils/Makefile.in b/loginutils/Makefile.in index 1c5680a..5027e80 100644 --- a/loginutils/Makefile.in +++ b/loginutils/Makefile.in @@ -25,13 +25,14 @@ endif LOGINUTILS-y:= LOGINUTILS-$(CONFIG_ADDGROUP) += addgroup.o LOGINUTILS-$(CONFIG_ADDUSER) += adduser.o -LOGINUTILS-$(CONFIG_DELUSER) += deluser.o LOGINUTILS-$(CONFIG_GETTY) += getty.o LOGINUTILS-$(CONFIG_LOGIN) += login.o LOGINUTILS-$(CONFIG_PASSWD) += passwd.o LOGINUTILS-$(CONFIG_SU) += su.o LOGINUTILS-$(CONFIG_SULOGIN) += sulogin.o LOGINUTILS-$(CONFIG_VLOCK) += vlock.o +LOGINUTILS-$(CONFIG_DELUSER) += deluser.o +LOGINUTILS-$(CONFIG_DELGROUP) += delgroup.o libraries-y+=$(LOGINUTILS_DIR)$(LOGINUTILS_AR) diff --git a/loginutils/delgroup.c b/loginutils/delgroup.c new file mode 100644 index 0000000..f74f64f --- /dev/null +++ b/loginutils/delgroup.c @@ -0,0 +1,60 @@ +/* vi: set sw=4 ts=4: */ +/* + * deluser (remove lusers from the system ;) for TinyLogin + * + * Copyright (C) 1999 by Lineo, inc. and John Beppu + * Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <sys/stat.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "busybox.h" + + +#if ! defined CONFIG_DELUSER +#include "delline.c" +#endif + +int delgroup_main(int argc, char **argv) +{ + /* int successful; */ + int failure; + + if (argc != 2) { + bb_show_usage(); + } else { + + failure = del_line_matching(argv[1], bb_path_group_file); +#ifdef CONFIG_FEATURE_SHADOWPASSWDS + if (access(bb_path_gshadow_file, W_OK) == 0) { + /* EDR the |= works if the error is not 0, so he had it wrong */ + failure |= del_line_matching(argv[1], bb_path_gshadow_file); + } +#endif + if (failure) { + bb_error_msg_and_die("%s: Group could not be removed\n", argv[1]); + } + + } + return (EXIT_SUCCESS); +} + +/* $Id: delgroup.c,v 1.1 2003/07/14 20:20:45 andersen Exp $ */ diff --git a/loginutils/delline.c b/loginutils/delline.c new file mode 100644 index 0000000..ed29ca0 --- /dev/null +++ b/loginutils/delline.c @@ -0,0 +1,113 @@ +/* vi: set sw=4 ts=4: */ +/* + * deluser (remove lusers from the system ;) for TinyLogin + * + * Copyright (C) 1999 by Lineo, inc. and John Beppu + * Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <sys/stat.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "busybox.h" + + + +/* where to start and stop deletion */ +typedef struct { + size_t start; + size_t stop; +} Bounds; + +/* An interesting side-effect of boundary()'s + * implementation is that the first user (typically root) + * cannot be removed. Let's call it a feature. */ +static inline Bounds boundary(const char *buffer, const char *login) +{ + char needle[256]; + char *start; + char *stop; + Bounds b; + + snprintf(needle, 256, "\n%s:", login); + needle[255] = 0; + start = strstr(buffer, needle); + if (!start) { + b.start = 0; + b.stop = 0; + return b; + } + start++; + + stop = index(start, '\n'); /* index is a BSD-ism */ + b.start = start - buffer; + b.stop = stop - buffer; + return b; +} + +/* grep -v ^login (except it only deletes the first match) */ +/* ...in fact, I think I'm going to simplify this later */ +static int del_line_matching(const char *login, const char *filename) +{ + char *buffer; + FILE *passwd; + size_t len; + Bounds b; + struct stat statbuf; + + /* load into buffer */ + passwd = fopen(filename, "r"); + if (!passwd) { + return 1; + } + stat(filename, &statbuf); + len = statbuf.st_size; + buffer = (char *) malloc(len * sizeof(char)); + + if (!buffer) { + fclose(passwd); + return 1; + } + fread(buffer, len, sizeof(char), passwd); + + fclose(passwd); + + /* find the user to remove */ + b = boundary(buffer, login); + if (b.stop == 0) { + free(buffer); + return 1; + } + + /* write the file w/o the user */ + passwd = fopen(filename, "w"); + if (!passwd) { + return 1; + } + fwrite(buffer, (b.start - 1), sizeof(char), passwd); + fwrite(&buffer[b.stop], (len - b.stop), sizeof(char), passwd); + + fclose(passwd); + + return 0; +} + + +/* $Id: delline.c,v 1.1 2003/07/14 20:20:45 andersen Exp $ */ diff --git a/loginutils/deluser.c b/loginutils/deluser.c index ad62d41..1cd2b01 100644 --- a/loginutils/deluser.c +++ b/loginutils/deluser.c @@ -29,113 +29,10 @@ #include "busybox.h" +#include "delline.c" -/* where to start and stop deletion */ -typedef struct { - size_t start; - size_t stop; -} Bounds; +static const char deluser_format[]="%s: User could not be removed from %s"; -/* An interesting side-effect of boundary()'s - * implementation is that the first user (typically root) - * cannot be removed. Let's call it a feature. */ -static inline Bounds boundary(const char *buffer, const char *login) -{ - char needle[256]; - char *start; - char *stop; - Bounds b; - - snprintf(needle, 256, "\n%s:", login); - needle[255] = 0; - start = strstr(buffer, needle); - if (!start) { - b.start = 0; - b.stop = 0; - return b; - } - start++; - - stop = index(start, '\n'); /* index is a BSD-ism */ - b.start = start - buffer; - b.stop = stop - buffer; - return b; -} - -/* grep -v ^login (except it only deletes the first match) */ -/* ...in fact, I think I'm going to simplify this later */ -static int del_line_matching(const char *login, const char *filename) -{ - char *buffer; - FILE *passwd; - size_t len; - Bounds b; - struct stat statbuf; - - /* load into buffer */ - passwd = fopen(filename, "r"); - if (!passwd) { - return 1; - } - stat(filename, &statbuf); - len = statbuf.st_size; - buffer = (char *) malloc(len * sizeof(char)); - - if (!buffer) { - fclose(passwd); - return 1; - } - fread(buffer, len, sizeof(char), passwd); - - fclose(passwd); - - /* find the user to remove */ - b = boundary(buffer, login); - if (b.stop == 0) { - free(buffer); - return 1; - } - - /* write the file w/o the user */ - passwd = fopen(filename, "w"); - if (!passwd) { - return 1; - } - fwrite(buffer, (b.start - 1), sizeof(char), passwd); - fwrite(&buffer[b.stop], (len - b.stop), sizeof(char), passwd); - - fclose(passwd); - - return 0; -} - -/* ________________________________________________________________________ */ -int delgroup_main(int argc, char **argv) -{ - /* int successful; */ - int failure; - - if (argc != 2) { - bb_show_usage(); - } else { - - failure = del_line_matching(argv[1], bb_path_group_file); -#ifdef CONFIG_FEATURE_SHADOWPASSWDS - if (access(bb_path_gshadow_file, W_OK) == 0) { - /* EDR the |= works if the error is not 0, so he had it wrong */ - failure |= del_line_matching(argv[1], bb_path_gshadow_file); - } -#endif /* CONFIG_FEATURE_SHADOWPASSWDS */ - /* if (!successful) { */ - if (failure) { - bb_error_msg_and_die("%s: Group could not be removed\n", argv[1]); - } - - } - return (EXIT_SUCCESS); -} - -/* ________________________________________________________________________ */ int deluser_main(int argc, char **argv) { /* int successful; */ @@ -146,34 +43,26 @@ int deluser_main(int argc, char **argv) } else { failure = del_line_matching(argv[1], bb_path_passwd_file); - /* if (!successful) { */ if (failure) { - bb_error_msg_and_die("%s: User could not be removed from %s\n", - argv[1], bb_path_passwd_file); + bb_error_msg_and_die(deluser_format, argv[1], bb_path_passwd_file); } #ifdef CONFIG_FEATURE_SHADOWPASSWDS failure = del_line_matching(argv[1], bb_path_shadow_file); - /* if (!successful) { */ if (failure) { - bb_error_msg_and_die("%s: User could not be removed from %s\n", - argv[1], bb_path_shadow_file); + bb_error_msg_and_die(deluser_format, argv[1], bb_path_shadow_file); } failure = del_line_matching(argv[1], bb_path_gshadow_file); - /* if (!successful) { */ if (failure) { - bb_error_msg_and_die("%s: User could not be removed from %s\n", - argv[1], bb_path_gshadow_file); + bb_error_msg_and_die(deluser_format, argv[1], bb_path_gshadow_file); } -#endif /* CONFIG_FEATURE_SHADOWPASSWDS */ +#endif failure = del_line_matching(argv[1], bb_path_group_file); - /* if (!successful) { */ if (failure) { - bb_error_msg_and_die("%s: User could not be removed from %s\n", - argv[1], bb_path_group_file); + bb_error_msg_and_die(deluser_format, argv[1], bb_path_group_file); } } return (EXIT_SUCCESS); } -/* $Id: deluser.c,v 1.3 2003/03/19 09:12:20 mjn3 Exp $ */ +/* $Id: deluser.c,v 1.4 2003/07/14 20:20:45 andersen Exp $ */ |